This is not surprising. I think Daniel pointed to Kate atleast one or two times that she is still jelaous. And didnīt she want to reconcile with him soon after he started the affair?

Kate definitely needs further motivation so itīs good they are tapping into it again (well, except the fantasy, but we donīt know how graphic that is yet). I also think some LK answers are done with tongue in the cheek, especially towards the end.